Question

an object which has a mass of 70 kg is sitting on a cliff 10 m high calculate the objects gravitational potential energy given g = 1o/s^

Answer 1

GPE = mgh (for objects close to earth where g can be considered to be constant) Where m is the mass, g is the acceleration due to gravity (which the question has told us to assume is 10ms^-2), and h is the height of the object.

Substituting the values in:
GPE = 70*10*10 = 7000J